DAF Pro: Stutter & Parkinson's4.10.0 - App Store
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Publisher Description
DAF Pro helps people who stutter and people with Parkinson's slow down and speak more fluently. Put on headphones, speak, and hear your own voice a fraction of a second later.
How It Works
Delayed auditory feedback (DAF) is a clinically recognized speech therapy technique. Hearing your voice on a short delay naturally slows your speaking rate, which can make speech smoother and clearer. Research suggests DAF helps around 1 in 3 people who stutter, and it is also used to help people with Parkinson's control their speaking rate.
Who It's For
* People who stutter or stammer
* People with Parkinson's disease
* People with dysarthria
* People who clutter
* Speech-language pathologists, for therapy sessions and home practice
Features
* Adjustable delay and pitch shift
* Very low latency, so short delays stay short
* Keeps working in the background and with the screen off
* Record and play back your speech
* Works with wired and Bluetooth headsets. Bluetooth adds extra delay that varies by headset, so wired headphones work best for short delays.
Getting Started
Put on headphones, set the delay to around 50-100 ms, press Start and speak. Then adjust until your speech feels slower and steadier.
Built by a UK speech and language therapist. One-time purchase: no subscription, no ads, no account needed.
Questions or feedback? Contact us at support@speechtools.co
Version History Updated for iOS 27 4.10.0 Sep 17 * Fixed a crash that could occur when playing back a recording.
* DAF now starts reliably after a phone call or a change of headphones.
* Fixed audio stuttering when switching headphones during a recording. 4.9.5 Sep 15 * Fixed a crash that could occur when playing back a recording.
* DAF now starts reliably after a phone call or a change of headphones.
* Fixed audio stuttering when switching headphones during a recording. 4.9.4 Sep 2 Bug fixes and performance enhancements 4.9.3 Aug 11 Bug fixes and performance enhancements 4.9.2 Aug 8 Bug fixes and performance enhancements 4.9.1 May 13 Added support for 12 new languages 4.9.0 Apr 10 Added support for 12 new languages 4.8.2 Jan 28 Added support for 12 new languages 4.8.1 Jan 15 Bug fixes for Bluetooth devices 4.8.0 Jan 15 Bug fixes for Bluetooth devices 4.7.1 10/29/2025 Bug fixes for Bluetooth devices 4.7.0 10/23/2025 Bug fixes for Bluetooth devices 4.6.6 10/14/2025 Updated for iOS 26 4.6.5 09/19/2025 Bug fixes and minor improvements 4.6.4 07/28/2025 Bug fixes and minor improvements 4.5.4 06/25/2025 Bug fixes and minor improvements 4.5.3 05/02/2025 Bug fixes and minor improvements 4.5.2 04/22/2025 Bug fixes and minor improvements 4.5.1 04/17/2025 Bug fixes and minor improvements 4.5.0 04/17/2025 Bug fixes and minor improvements 4.4.0 04/04/2025 Bug fixes and minor improvements 4.3.0 02/26/2025 Bug fixes and minor improvements 4.2.5 02/20/2025 Bug fixes and minor improvements 4.2.4 02/13/2025 Bug fixes and minor improvements 4.2.3 02/11/2025
About DAF Pro: Stutter & Parkinson's
The company that develops DAF Pro: Stutter & Parkinson's is Speechtools Ltd. The latest version released by its developer is 4.10.0.
To install DAF Pro: Stutter & Parkinson's on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-13 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the DAF Pro: Stutter & Parkinson's as malware if the download link is broken.
How to install DAF Pro: Stutter & Parkinson's on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the DAF Pro: Stutter & Parkinson's is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After DAF Pro: Stutter & Parkinson's is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 4.10.0
posted on 2026-10-13
Version History Updated for iOS 27 4.10.0 Sep 17 * Fixed a crash that could occur when playing back a recording.
* DAF now starts reliably after a phone call or a change of headphones.
* Fixed audio stuttering when switching headphones during a recording. 4.9.5 Sep 15 * Fixed a crash that could occur when playing back a recording.
* DAF now starts reliably after a phone call or a change of headphones.
* Fixed audio stuttering when switching headphones during a recording. 4.9.4 Sep 2 Bug fixes and performance enhancements 4.9.3 Aug 11 Bug fixes and performance enhancements 4.9.2 Aug 8 Bug fixes and performance enhancements 4.9.1 May 13 Added support for 12 new languages 4.9.0 Apr 10 Added support for 12 new languages 4.8.2 Jan 28 Added support for 12 new languages 4.8.1 Jan 15 Bug fixes for Bluetooth devices 4.8.0 Jan 15 Bug fixes for Bluetooth devices 4.7.1 10/29/2025 Bug fixes for Bluetooth devices 4.7.0 10/23/2025 Bug fixes for Bluetooth devices 4.6.6 10/14/2025 Updated for iOS 26 4.6.5 09/19/2025 Bug fixes and minor improvements 4.6.4 07/28/2025 Bug fixes and minor improvements 4.5.4 06/25/2025 Bug fixes and minor improvements 4.5.3 05/02/2025 Bug fixes and minor improvements 4.5.2 04/22/2025 Bug fixes and minor improvements 4.5.1 04/17/2025 Bug fixes and minor improvements 4.5.0 04/17/2025 Bug fixes and minor improvements 4.4.0 04/04/2025 Bug fixes and minor improvements 4.3.0 02/26/2025 Bug fixes and minor improvements 4.2.5 02/20/2025 Bug fixes and minor improvements 4.2.4 02/13/2025 Bug fixes and minor improvements 4.2.3 02/11/2025
version 4.10.0
posted on 2026-09-18
Version History Updated for iOS 27 4.10.0 9h ago * Fixed a crash that could occur when playing back a recording.
* DAF now starts reliably after a phone call or a change of headphones.
* Fixed audio stuttering when switching headphones during a recording. 4.9.5 2d ago * Fixed a crash that could occur when playing back a recording.
* DAF now starts reliably after a phone call or a change of headphones.
* Fixed audio stuttering when switching headphones during a recording. 4.9.4 Sep 2 Bug fixes and performance enhancements 4.9.3 Aug 11 Bug fixes and performance enhancements 4.9.2 Aug 8 Bug fixes and performance enhancements 4.9.1 May 13 Added support for 12 new languages 4.9.0 Apr 10 Added support for 12 new languages 4.8.2 Jan 28 Added support for 12 new languages 4.8.1 Jan 15 Bug fixes for Bluetooth devices 4.8.0 Jan 15 Bug fixes for Bluetooth devices 4.7.1 10/29/2025 Bug fixes for Bluetooth devices 4.7.0 10/23/2025 Bug fixes for Bluetooth devices 4.6.6 10/14/2025 Updated for iOS 26 4.6.5 09/19/2025 Bug fixes and minor improvements 4.6.4 07/28/2025 Bug fixes and minor improvements 4.5.4 06/25/2025 Bug fixes and minor improvements 4.5.3 05/02/2025 Bug fixes and minor improvements 4.5.2 04/22/2025 Bug fixes and minor improvements 4.5.1 04/17/2025 Bug fixes and minor improvements 4.5.0 04/17/2025 Bug fixes and minor improvements 4.4.0 04/04/2025 Bug fixes and minor improvements 4.3.0 02/26/2025 Bug fixes and minor improvements 4.2.5 02/20/2025 Bug fixes and minor improvements 4.2.4 02/13/2025 Bug fixes and minor improvements 4.2.3 02/11/2025
version 4.9.4
posted on 2026-09-11
Version History * Fixed a crash that could occur when playing back a recording.
* DAF now starts reliably after a phone call or a change of headphones.
* Fixed audio stuttering when switching headphones during a recording. 4.9.4 Sep 2 Bug fixes and performance enhancements 4.9.3 Aug 11 Bug fixes and performance enhancements 4.9.2 Aug 8 Bug fixes and performance enhancements 4.9.1 May 13 Added support for 12 new languages 4.9.0 Apr 10 Added support for 12 new languages 4.8.2 Jan 28 Added support for 12 new languages 4.8.1 Jan 15 Bug fixes for Bluetooth devices 4.8.0 Jan 15 Bug fixes for Bluetooth devices 4.7.1 10/29/2025 Bug fixes for Bluetooth devices 4.7.0 10/23/2025 Bug fixes for Bluetooth devices 4.6.6 10/14/2025 Updated for iOS 26 4.6.5 09/19/2025 Bug fixes and minor improvements 4.6.4 07/28/2025 Bug fixes and minor improvements 4.5.4 06/25/2025 Bug fixes and minor improvements 4.5.3 05/02/2025 Bug fixes and minor improvements 4.5.2 04/22/2025 Bug fixes and minor improvements 4.5.1 04/17/2025 Bug fixes and minor improvements 4.5.0 04/17/2025 Bug fixes and minor improvements 4.4.0 04/04/2025 Bug fixes and minor improvements 4.3.0 02/26/2025 Bug fixes and minor improvements 4.2.5 02/20/2025 Bug fixes and minor improvements 4.2.4 02/13/2025 Bug fixes and minor improvements 4.2.3 02/11/2025 Bug fixes and minor improvements 4.2.2 02/04/2025 Bug fixes and minor improvements 4.2.1 02/02/2025
version 4.9.4
posted on 2026-09-04
Version History * Fixed a crash that could occur when playing back a recording.
* DAF now starts reliably after a phone call or a change of headphones.
* Fixed audio stuttering when switching headphones during a recording. 4.9.4 1d ago Bug fixes and performance enhancements 4.9.3 Aug 11 Bug fixes and performance enhancements 4.9.2 Aug 8 Bug fixes and performance enhancements 4.9.1 May 13 Added support for 12 new languages 4.9.0 Apr 10 Added support for 12 new languages 4.8.2 Jan 28 Added support for 12 new languages 4.8.1 Jan 15 Bug fixes for Bluetooth devices 4.8.0 Jan 15 Bug fixes for Bluetooth devices 4.7.1 10/29/2025 Bug fixes for Bluetooth devices 4.7.0 10/23/2025 Bug fixes for Bluetooth devices 4.6.6 10/14/2025 Updated for iOS 26 4.6.5 09/19/2025 Bug fixes and minor improvements 4.6.4 07/28/2025 Bug fixes and minor improvements 4.5.4 06/25/2025 Bug fixes and minor improvements 4.5.3 05/02/2025 Bug fixes and minor improvements 4.5.2 04/22/2025 Bug fixes and minor improvements 4.5.1 04/17/2025 Bug fixes and minor improvements 4.5.0 04/17/2025 Bug fixes and minor improvements 4.4.0 04/04/2025 Bug fixes and minor improvements 4.3.0 02/26/2025 Bug fixes and minor improvements 4.2.5 02/20/2025 Bug fixes and minor improvements 4.2.4 02/13/2025 Bug fixes and minor improvements 4.2.3 02/11/2025 Bug fixes and minor improvements 4.2.2 02/04/2025 Bug fixes and minor improvements 4.2.1 02/02/2025
version 4.9.3
posted on 2026-08-22
Version History Bug fixes and performance enhancements 4.9.3 Aug 11 Bug fixes and performance enhancements 4.9.2 Aug 8 Bug fixes and performance enhancements 4.9.1 May 13 Added support for 12 new languages 4.9.0 Apr 10 Added support for 12 new languages 4.8.2 Jan 28 Added support for 12 new languages 4.8.1 Jan 15 Bug fixes for Bluetooth devices 4.8.0 Jan 15 Bug fixes for Bluetooth devices 4.7.1 10/29/2025 Bug fixes for Bluetooth devices 4.7.0 10/23/2025 Bug fixes for Bluetooth devices 4.6.6 10/14/2025 Updated for iOS 26 4.6.5 09/19/2025 Bug fixes and minor improvements 4.6.4 07/28/2025 Bug fixes and minor improvements 4.5.4 06/25/2025 Bug fixes and minor improvements 4.5.3 05/02/2025 Bug fixes and minor improvements 4.5.2 04/22/2025 Bug fixes and minor improvements 4.5.1 04/17/2025 Bug fixes and minor improvements 4.5.0 04/17/2025 Bug fixes and minor improvements 4.4.0 04/04/2025 Bug fixes and minor improvements 4.3.0 02/26/2025 Bug fixes and minor improvements 4.2.5 02/20/2025 Bug fixes and minor improvements 4.2.4 02/13/2025 Bug fixes and minor improvements 4.2.3 02/11/2025 Bug fixes and minor improvements 4.2.2 02/04/2025 Bug fixes and minor improvements 4.2.1 02/02/2025 Bug fixes and minor improvements 4.2.0 01/30/2025
version 4.9.1
posted on 2026-07-24
Version History Bug fixes and performance enhancements 4.9.1 May 13 Added support for 12 new languages 4.9.0 Apr 10 Added support for 12 new languages 4.8.2 Jan 28 Added support for 12 new languages 4.8.1 Jan 15 Bug fixes for Bluetooth devices 4.8.0 Jan 15 Bug fixes for Bluetooth devices 4.7.1 10/29/2025 Bug fixes for Bluetooth devices 4.7.0 10/23/2025 Bug fixes for Bluetooth devices 4.6.6 10/14/2025 Updated for iOS 26 4.6.5 09/19/2025 Bug fixes and minor improvements 4.6.4 07/28/2025 Bug fixes and minor improvements 4.5.4 06/25/2025 Bug fixes and minor improvements 4.5.3 05/02/2025 Bug fixes and minor improvements 4.5.2 04/22/2025 Bug fixes and minor improvements 4.5.1 04/17/2025 Bug fixes and minor improvements 4.5.0 04/17/2025 Bug fixes and minor improvements 4.4.0 04/04/2025 Bug fixes and minor improvements 4.3.0 02/26/2025 Bug fixes and minor improvements 4.2.5 02/20/2025 Bug fixes and minor improvements 4.2.4 02/13/2025 Bug fixes and minor improvements 4.2.3 02/11/2025 Bug fixes and minor improvements 4.2.2 02/04/2025 Bug fixes and minor improvements 4.2.1 02/02/2025 Bug fixes and minor improvements 4.2.0 01/30/2025 Bug fixes and minor improvements 4.1.1 01/28/2025 Bug fixes and minor improvements 4.1.0 01/23/2025
version 4.8.2
posted on 2026-01-28
Added support for 12 new languages
version 4.6.5
posted on 2025-09-19
Sep 19, 2025
Version 4.6.5
Updated for iOS 26
version 4.6.4
posted on 2025-07-28
Jul 28, 2025
Version 4.6.4
Bug fixes and minor improvements
version 4.5.3
posted on 2025-05-02
May 2, 2025
Version 4.5.3
Bug fixes and minor improvements
Disclaimer
Official App Store Link
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